CA3118663A1 - Method of feeding wood chips to a prehydrolysis reactor - Google Patents

Method of feeding wood chips to a prehydrolysis reactor Download PDF

Info

Publication number
CA3118663A1
CA3118663A1 CA3118663A CA3118663A CA3118663A1 CA 3118663 A1 CA3118663 A1 CA 3118663A1 CA 3118663 A CA3118663 A CA 3118663A CA 3118663 A CA3118663 A CA 3118663A CA 3118663 A1 CA3118663 A1 CA 3118663A1
Authority
CA
Canada
Prior art keywords
chip
vessel
pump
reactor
reactor vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CA3118663A
Other languages
English (en)
French (fr)
Inventor
Marco ANDRADE
Ronny GEIGER
Vesa Kaipainen
Auvo Kettunen
Petri Tarjavuori
Viridiane VIANNA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andritz Oy
Original Assignee
Andritz Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Andritz Oy filed Critical Andritz Oy
Publication of CA3118663A1 publication Critical patent/CA3118663A1/en
Pending legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/24—Continuous processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C7/00—Digesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C7/00—Digesters
    • D21C7/06—Feeding devices

Landscapes

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
CA3118663A 2018-10-03 2019-10-02 Method of feeding wood chips to a prehydrolysis reactor Pending CA3118663A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20185831A FI129118B (fi) 2018-10-03 2018-10-03 Menetelmä puuhakkeen syöttämiseksi esihydrolyysireaktoriin
FI20185831 2018-10-03
PCT/FI2019/050706 WO2020070389A1 (en) 2018-10-03 2019-10-02 Method of feeding wood chips to a prehydrolysis reactor

Publications (1)

Publication Number Publication Date
CA3118663A1 true CA3118663A1 (en) 2020-04-09

Family

ID=68290257

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3118663A Pending CA3118663A1 (en) 2018-10-03 2019-10-02 Method of feeding wood chips to a prehydrolysis reactor

Country Status (9)

Country Link
US (1) US11993895B2 (fi)
EP (1) EP3861164A1 (fi)
JP (1) JP2022504216A (fi)
CN (1) CN112867824A (fi)
BR (1) BR112021005764A2 (fi)
CA (1) CA3118663A1 (fi)
CL (1) CL2021000835A1 (fi)
FI (1) FI129118B (fi)
WO (1) WO2020070389A1 (fi)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI103898B1 (fi) * 1994-01-24 1999-10-15 Sunds Defibrator Pori Oy Menetelmä prehydrolysoidun sellun ja/tai sellumassan tuottamiseksi
SE517099E (sv) 1996-04-17 2004-07-13 Kvaerner Pulping Tech System innefattande två pumpar för matning av en sspension till ett tryckkärl
US6605350B1 (en) 1996-08-23 2003-08-12 Weyerhaeuser Company Sawdust alkaline pulp having low average degree of polymerization values and method of producing the same
US6336993B1 (en) * 1996-10-25 2002-01-08 Andritz-Ahlstrom Inc. Metal removal from comminuted fibrous material during feeding
US5753075A (en) * 1996-10-25 1998-05-19 Stromberg; C. Bertil Method and system for feeding comminuted fibrous material
CA2266987C (en) 1998-04-21 2004-02-10 C. Bertil Stromberg Method and system for feeding comminuted fibrous material
FI20010854A (fi) 2000-05-11 2001-11-12 Andritz Ahlstrom Inc Menetelmä selluloosapitoisen materiaalin käsittelemiseksi
US7556713B2 (en) * 2004-06-22 2009-07-07 Andritz, Inc. Method and system for feeding cellulose chips to a high pressure continuous cooking system
FI123102B (fi) 2006-03-31 2012-11-15 Laennen Tutkimus Western Res Inc Oy Kemiallisen massan valkaisumenetelmä
US8734610B2 (en) 2007-05-23 2014-05-27 Andritz Inc. Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash method
RU2555655C2 (ru) 2009-11-24 2015-07-10 Андритц Инк. Способ и система для варки тонкой щепы в варочном котле
US9371612B2 (en) * 2011-02-22 2016-06-21 Andritz Inc. Method and apparatus to produce pulp using pre-hydrolysis and Kraft cooking
US8951388B2 (en) * 2011-04-08 2015-02-10 Pec-Tech Engineering And Construction Pte Ltd Method and system for efficient production of dissolving pulp in a kraft mill producing paper grade pulp with a continuous type digester
US9644317B2 (en) 2014-11-26 2017-05-09 International Paper Company Continuous digester and feeding system

Also Published As

Publication number Publication date
CN112867824A (zh) 2021-05-28
US11993895B2 (en) 2024-05-28
WO2020070389A1 (en) 2020-04-09
BR112021005764A2 (pt) 2021-06-22
FI129118B (fi) 2021-07-30
FI20185831A1 (fi) 2020-04-04
EP3861164A1 (en) 2021-08-11
CL2021000835A1 (es) 2021-09-03
US20220002944A1 (en) 2022-01-06
JP2022504216A (ja) 2022-01-13

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